part of an effort to track the life-span of the birds to learn more about the health of the environment. >>> there are a lot of falcons out there. up to 300 pairs in california. it's a lot. doesn't seem like it. top of the food chain. >> because the falcons are so high up on the food chain, their longevity is directly related to the health of what they eat. >> by the way, it turns out all of the newborn chicks on that ledge are males. all of them. >> there you go. >> i know. >>> up next, speaking of eating, we are going to do a little dining with our fresh grocer tony tantillo. >> but first, is your meat safe? find out which meats doctors say are most likely to make you sick. ,,,,,,,,,,,,,,,,,, university is making the transition to a smoke-free campus. >>> southern california university is making the transition to a smoke-free campus. ucla went tobacco-free yesterday to coincide with earth day. it's the first university of california campus to ban tobacco products including cigarettes, pipes, cigars, chewing tobacco and even cigarettes. this is just the beginning. uc's president has ca